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Engine Controls - Self-Diagnostics - SEPHIA & Spectra Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Connector Identification Diagnostic Trouble Codes Notes DTC P0101: Mass Airflow (MAF) Sensor Range/Performance Problem DTC P0102: Mass Airflow (MAF) Sensor Circuit Low Input DTC P0103: Mass Airflow (MAF) Sensor Circuit High Input DTC P0111: Intake Air Temperature (IAT) Sensor Circuit Malfunction DTC P0112: Intake Air Temperature (IAT) Sensor Circuit Low Input DTC P0113: Intake Air Temperature (IAT) Sensor Circuit High Input DTC P0116: Engine Coolant Temperature (ECT) Sensor Range/Performance Malfunction, Or DTC P0125: Excessive Time To Enter Closed Loop DTC P0117: Engine Coolant Temperature (ECT) Sensor Circuit Low Input DTC P0118: Engine Coolant Temperature (ECT) Sensor Circuit High Input DTC P0122: Throttle Position (TP) Sensor Circuit Low Input DTC P0123: Throttle Position (TP) Sensor Circuit High Input DTC P0125: Excessive Time To Enter Closed Loop DTC P0128: Coolant Thermostat Stuck Open DTC P0130: Front Heated Oxygen Sensor (Ho2S) Circuit Malfunction DTC P0131: Front Heated Oxygen Sensor (Ho2S) Circuit Low Voltage DTC P0132: Front Heated Oxygen Sensor (Ho2S) Circuit High Voltage DTC P0133: Front Heated Oxygen Sensor (Ho2S) Slow Response DTC P0134: No Front Heated Oxygen Sensor (Ho2S) Activity Detected DTC P0135: Front Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction DTC P0136: Rear Heated Oxygen Sensor (Ho2S) Circuit Malfunction DTC P0137: Rear Heated Oxygen Sensor (Ho2S) Circuit Low Voltage DTC P0138: Rear Heated Oxygen Sensor (Ho2S) Circuit High Voltage DTC P0139: Rear Heated Oxygen Sensor (Ho2S) Circuit Slow Response DTC P0140: No Rear Heated Oxygen Sensor (Ho2S) Activity Detected DTC P0141: Rear Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction DTC P0171: System Too Lean DTC P0172: System Too Rich DTC P0201-P0204: Fuel Injectors No. 1-4 Circuit Malfunction DTC P0300-P0304: Random/Multiple Cylinder Misfire Detected DTC P0335: Crankshaft Position Sensor (CKP) Circuit Malfunction DTC P0336: Crankshaft Position (CKP) Sensor Circuit Range/Performance Malfunction DTC P0342: Camshaft Position (CMP) Sensor Circuit Low Input DTC P0343: Camshaft Position (CMP) Sensor Circuit High Input DTC P0422: Catalyst Efficiency Below Threshold DTC P0441: EVAP System Incorrect Purge Flow, DTC P0442: EVAP System Leak Detected (Small), Or DTC P0455: EVAP System Leak Detected (Large) DTC P0442: EVAP System Leak Detected (Small) DTC P0443: EVAP System Purge Control Circuit Malfunction DTC P0455: EVAP System Leak Detected (Large) DTC P0460: Fuel Level Sensor Circuit Malfunction DTC P0501: Vehicle Speed Sensor (VSS) Range/Performance Malfunction DTC P0506: Idle Air Control (IAC) System Idle Low, Or DTC P0507: Idle Air Control (IAC) System Idle High DTC P0560: System Voltage Malfunction DTC P0601: Engine Control Module (ECM) Check Sum Error, Or DTC P0604: Engine Control Module (ECM) Ram Error DTC P0650: Mil Circuit Malfunction DTC P1307: Chassis Acceleration Sensor (CAS) Signal Malfunction, DTC P1308: Chassis Acceleration Sensor (CAS) Signal Low Input, Or DTC P1309: Chassis Acceleration Sensor (CAS) Signal High Input P1386: Knock Sensor Circuit Malfunction P1446: Leak Detection Pump Valve Circuit Malfunction DTC P1447: Leak Detection Pump Circuit Malfunction DTC P1448: Leak Detection Pump Malfunction DTC P1458: A/C Compressor Control Signal Malfunction DTC P1505: Idle Air Control (IAC) Valve Opening Coil Signal Low, Or DTC P1506: Idle Air Control (IAC) Valve Opening Coil Signal High DTC P1507: Idle Air Control (IAC) Valve Closing Coil Signal Low, Or DTC P1508: Idle Air Control (IAC) Valve Closing Coil Signal High DTC P1586: Automatic Transaxle (A/T) Or Manual Transaxle (M/T) Codification DTC P1611: Malfunction Indicator Light (Mil) Request Circuit Voltage Low, Or DTC P1614: Malfunction Indicator Light (Mil) Request Circuit Voltage High DTC P1624: Malfunction Indicator Light (Mil) Request Circuit Malfunction DTC P1673: Cooling Fan Circuit Malfunction